Machine used for the process of sublimation



Oct. 16 1923.

E. Q.ADAMS MACHINE USED FOR THE PROCESS OF SUBLIMATION.

4 Sheets-Sheet 1 IIIIII IIII IIIEIII M41168. m 6M, Momma .Oqt 16 1923 E. Q. ADAMS MACHINE USED FOR THE PROCESS OF SUBLIMA'I'ION I Filed Seat. 18 1919 4 Sheets-Sheet 2 Y /X W y 6 M v f" \EEEJEME Fi 41 Z1 Oct. 16,1923. 1,476,950 I E. Q.- ADAMS MACHINE USED FOR THE PROCESS OF SUBLIMATION Filed Sept. 18, 1919 4 Sheets-Sheet 3 Oct. 16, 1923.

E. Q. ADAMS MACHINE USED FOR THE PROCESS OF SUBLIMATION' Filed Sept, 18. 1919 4 Sheets-Sheet 4 Patented ea. ra ses; 7

ELLIOT e. ADAMS, or BERKELEY,

cA rresma; BY mam rass'renrannrs 'nnnica'rnn mo THE .P orLn on THE UNITED 's-ra'r'ss For. THEIR use can nmoyiai m.

an a CHIN usnn For; T33 rnoonss] or .SUBLIMATION.

1 Application filed samba 18,1919; Serial no. 324,730. 1

('FILEIi' unnnn THE acres arten a, 188 3, '22 's'ra'r. n, 625.

7 To aZZwYzom it mag/concern: V r A Be it'known that I, ELLIOT Q. ADAMS, a;

i citizen of the United States of A merica, and

an employee of the Department of AgricuL ture,'residing in the city of Berkeley, county of Alameda, State of California, (whose post-ollice address is Department of Agri-- culture, lVashington, D. 0.), have invented a new and useful Improvement in the Ma 10 chine Used for" theProcess of Sublimation. This application is made undertheact of March 3, 1883, chapter-143 (22 Stat, 625). and the invention herein, described and claimed maybe used by the Government of the UnitedSt'ates'or anyoi its oiiicersor employees in the prosecutionof Work for the Government, anda ny pe'rson in the United States, ithoutjpayment to me of,

any royalty thereon. I In the purification. otsubstancesbysub lilnati'on the c'urrentfof gas charged with volatile substances hasbeen caused to move through large numbers of; small orifices, ar' ranged in approximately the same plane in a sheet, plate or screen, the least volatile constituents separating or congregating or e 1 crystallizingr-onthe edges oradjacent to the orifices. The material collecting on the screens or onthe orifices has been removed 3 by shaking 0r "jarring the screens or by scraping or brushing by handintermittently or continuously. m lhave found that theremoval of themaas a ser es of concentric cylinders, or halfoscillate, about the" axis" of the cylinders, passing across the race-or the screens at each revolution, o s ill ti y r Thisarrangementpossesses the additional advantage that, being'radiallysymmetrical, thetemperature tends t be uniform; over the entire 'surface' jof 'Ieach' screen, Which is not the; case 1 when the screensare disposed otherwlse. I

sive, showing an apparatus Withcylind rical screens. 1

and VV, respectively,

:WhichQare' separated by the screens. S

terial collecting on the'screensican be better accomplished byarrang1ncr-the screens.

' by i the rack,

Similarletterslrefer tosiinilarfparts in the different views of the same apparatus.

Thevopleration otthe two types of appa- I ratuswill new be described in detail,

Figs. lto A: show sectionsof the apparatus with;'hemicylindrical screens, the sec-' tiong being taken at the plane'sindicated The current of heatedgas -charged.,with

the volatile substances enters the apparatus through the port, I, in the Wall, impass- 111g. in?- succession through. the. concentric compartments, 'C IC C C C ,,C C

8, ,"64, 'S and the perforatedavall P,

over-the entire area of the screens. From is bounded externally by the outer shell, f'ofj the apparatus; The perforations in P are so disposed'asxto equalize the gas fiow (3, the gaspasses into a collecting dome, D

and leaves the: apparatus f at ,O. The part1t1'on,-'X, and. the flange, 'J, prevent the leakage of gas into .or from the apparatus.

Loss of heat .into the outgoing gas in D,

rialatL."

The material-collecting on the screens, S

is prevented by-Tthe heat insulating mate S S S 5 -011 the inside-efthe perforated Wall, P, and on the roof, L, is'brushed olf by the brushes, B, (which are carried on frames T T T T T which in turn are attached to the oscillating arm. A) r and so I swept along the .flo'or, F until itfalls into jthe-hoppers, H H H 114,11 and H 7 p from which itmay be removed 'bydrawing cylinders, and'causmg brushes to revolve, or I the slides, N.

G and G an the connecting rod, I

p Figs} 5f to .8, shoy v' sections or the appa iratusi with cylindrical screens, the: sections .beingj'taken at the planesindicated (in the I "other views) byAAB'B, AfAQ 'B/B. andf Z, respectively, The apparatus isbuilt upon :The gas, current entering at. G passes 'over i the material to be sublimed at H, H,jis' de-v fiected downward by the baffle, W and The opening at X passes in succession through the screens, D 10 ,13 D and finally is allowed to bubble through the Water seal, N,

The heat necessary for the sublimation is supplied by the burners U, supplied by pipe Q the burned gases being carried from the combustion chamber, Z, through the flue F.

' Thematerial to' be purified is placed in' the funnel, R, is fed into the apparatus by the spiral feed, V, melted by heat from F and flows in succession over the annular trays, H, H, finally collecting in the space, Y, from which it drips out by tube, Q. prevents j siphoning. The trays H, are supported from the outer wall, E, of the vaporizing apparatus, the trays H from F. l Y

p The tunnel, R, theroofiS, the outer shell,

- C, the screens, D -andl) and the brushes the Worm,

J are fastened together, supported 'on'rollers i i-the trough-,ll, and caused to rotate, as a unit,b the IIlOtOIflLi acting through {1 and Worm wheel K The motor rests on the'shelf IN. 'The screens D and l) and the brushes J fare'attached to the floor.

In thisway the rotation of the movable parts. of the apparatus causes brushes J to pass over the floor and thestationary screens 13 D while screens 1) and D thereof 5, and the outer shell C, move past the stationary brushes J All the material collecting on the screens is thus removed and falling to the floor is swept into the hoppers, 1,, 1 1- 1,, 1,,irom which itmaybe removed by drawing the slides, XX.

IHaving'now fully described my invention, what I claimand desire to protect by Letters Patent isi I 1. In apparatus of the character set liiorth, the combination Wlth fii series of communicating condensing chambers, one I within the other, of means for introducing ,vapors tobe condensed into the inner cham her and permitting their outward flow through the others, means for securing diilerent temperatures in the different chamb'ers,'and means for separately collecting'the different materials condensed in the different; cha-mbe-rs respectively and separately Withdrawing the same.

21h apparatus 01"? the characterset forth, the combination with a casingcomprising a rear Wall, an arcuate Wall'having its ends'associated with the rearrwall, and

ins-top and bottom, eta series of arcuate substanti-allyconcentric toraminous ivalls Within the casing, having their ends 218500131566.

with the rear Wall defining a plurality of chambers, means for' introducing vapors'to be condensed into the innermost chamber, and means for permitting the escape of the or is carried "down through the floor ll l by ducts (not shown).

unaffected vapors from the outermost chamber. v

in apparatus of" the character, set forth, the combination with a'series or communicating condensing chambers, one Within the other, of means for introducing vapors to be condensed into the inner chain'- ber vand permitting their outward low through the others, means for causing the fractional distillation of the vapors in the dilierent chambers, and means for detaching the condensed materials from the Walls of the chainb separately collecting the same, and permitting their separate withdrawal.

i. In condensing niechanismor the character set forth, the combination with a casing, of means for introducing-vapors to be condensed into the casing, means for permitting the escape of the residue,- substantially circular screens in the c'asingbetween the introducing and escape-permitting rneansfbruslms acting against the screens, means for effecting a complete relativerotation betn een the screens and brushes, and

means operating over the bottom between the screens ton separately collecting the materials condensed and deposited in the i different compartments screens and separately discharging the smile from the casin in; apparatus of forth,

the character set means delivering into the space ithinsaid inermost screen, hopper carried by the top and delivering into the vaporizer, and 'lfeedingmeans carried by the vaporizer and.

located in thehopper.

. I Thin apparatus of the character set forth, the. combination with a condenser caS- ing comprising relatively rotatable sections,

o't substantially cylindrical :screens arranged 'onewit hin the other and alternately carried by the diffe ent sections, means for introducing vapors; to be condensed on the screens,

{and means for removing-the materials fromsaidscreens. v v

The combination with acasing having top and bottom, side walls and forami'nous partitions forming chambers, one Within the other, of a heater passing through the formed by I the the combination itha substantially innermost chamber, means for passing a gaseous vehicle and a substance to be vaporized along the heater and causing them to be commingled while heated, means for discharging the commingled and heated vapors into the innermost chamber and causing the same to flow outwardly through the other chambers.

9. In condensing mechanism of the chai acter set forth the combination with a casing including a side wall and top and bottom for material condensed in the casing of a continuous screen carried by one wall, a brush operating on the screen and carried by the other wall, means for relatively rotating the top and bottom walls and means for introducing vapors to be condensed into the casing.

In testimony whereof, I afiix my signature in the presence of two subscribing COURTNEY GONOVER. 

